1 package Moose::Meta::Method::Accessor::Native::Writer;
6 use List::MoreUtils qw( any );
8 our $AUTHORITY = 'cpan:STEVAN';
12 with 'Moose::Meta::Method::Accessor::Native';
14 requires '_potential_value';
16 sub _generate_method {
20 my $slot_access = $self->_get_value($inv);
24 'my ' . $inv . ' = shift;',
25 $self->_inline_curried_arguments,
26 $self->_inline_writer_core($inv, $slot_access),
31 sub _inline_writer_core {
33 my ($inv, $slot_access) = @_;
35 my $potential = $self->_potential_value($slot_access);
40 $self->_inline_check_argument_count,
41 $self->_inline_process_arguments($inv, $slot_access),
42 $self->_inline_check_arguments('for writer'),
43 $self->_inline_check_lazy($inv, '$type_constraint', '$type_constraint_obj'),
46 if ($self->_return_value($slot_access)) {
47 # some writers will save the return value in this variable when they
48 # generate the potential value.
49 push @code, 'my @return;'
53 $self->_inline_coerce_new_values,
54 $self->_inline_copy_native_value(\$potential),
55 $self->_inline_tc_code($potential, '$type_constraint', '$type_constraint_obj'),
56 $self->_inline_get_old_value_for_trigger($inv, $old),
57 $self->_inline_capture_return_value($slot_access),
58 $self->_inline_set_new_value($inv, $potential, $slot_access),
59 $self->_inline_trigger($inv, $slot_access, $old),
60 $self->_inline_return_value($slot_access, 'for writer'),
66 sub _inline_process_arguments { return }
68 sub _inline_check_arguments { return }
70 sub _inline_coerce_new_values { return }
72 sub _writer_value_needs_copy {
75 return $self->_constraint_must_be_checked;
78 sub _constraint_must_be_checked {
81 my $attr = $self->associated_attribute;
83 return $attr->has_type_constraint
84 && (!$self->_is_root_type( $attr->type_constraint )
85 || ( $attr->should_coerce && $attr->type_constraint->has_coercion)
93 my $name = $type->name;
95 return any { $name eq $_ } @{ $self->root_types };
98 sub _inline_copy_native_value {
100 my ($potential_ref) = @_;
102 return unless $self->_writer_value_needs_copy;
104 my $code = 'my $potential = ' . ${$potential_ref} . ';';
106 ${$potential_ref} = '$potential';
111 around _inline_tc_code => sub {
114 my ($value, $tc, $tc_obj, $for_lazy) = @_;
116 return unless $for_lazy || $self->_constraint_must_be_checked;
118 return $self->$orig(@_);
121 sub _inline_check_coercion {
123 my ($value, $tc, $tc_obj) = @_;
125 my $attr = $self->associated_attribute;
126 return unless $attr->should_coerce && $attr->type_constraint->has_coercion;
128 # We want to break the aliasing in @_ in case the coercion tries to make a
129 # destructive change to an array member.
130 return $value . ' = ' . $tc_obj . '->coerce(' . $value . ');';
133 around _inline_check_constraint => sub {
136 my ($value, $tc, $tc_obj, $for_lazy) = @_;
138 return unless $for_lazy || $self->_constraint_must_be_checked;
140 return $self->$orig(@_);
143 sub _inline_capture_return_value { return }
145 sub _inline_set_new_value {
148 return $self->_inline_store_value(@_)
149 if $self->_writer_value_needs_copy
150 || !$self->_slot_access_can_be_inlined
151 || !$self->_get_is_lvalue;
153 return $self->_inline_optimized_set_new_value(@_);
159 return $self->associated_attribute->associated_class->instance_metaclass->inline_get_is_lvalue;
162 sub _inline_optimized_set_new_value {
165 return $self->_inline_store_value(@_);
170 my ($slot_access) = @_;